Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Noise-eliminating device for valve spring in valve actuating mechanism of engine

A valve train, valve spring technology, applied in the direction of engine components, machines/engines, valve devices, etc., can solve the problems of harsh, difficult, and easy to cover up spring sound, and achieves elimination of chatter noise, low cost, and elimination of bad noise. Effect

Inactive Publication Date: 2012-05-02
NANJING JINCHENG MACHINERY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the engine is running at high speed, the sound produced by the vibration of the spring is extremely harsh, and at the same time it is easy to cover the sound of other working parts of the engine, which creates obstacles and difficulties in determining the failure of the engine.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Noise-eliminating device for valve spring in valve actuating mechanism of engine
  • Noise-eliminating device for valve spring in valve actuating mechanism of engine
  • Noise-eliminating device for valve spring in valve actuating mechanism of engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] Such as figure 1 and figure 2 As shown, the valve spring noise elimination device in the engine gas distribution mechanism of the present invention includes a cylinder head 5, a valve 1 and a spring, and a step bush 4 is provided between the valve 1 and the spring, and the step bush 4 and the spring are clearance fit . The step bushing 4 is a step bush made of nylon or a step bush made of polytetrafluoroethylene. The stepped bushing 4 made of the above materials has self-lubricating properties, can fundamentally eliminate friction noise, and has excellent anti-fatigue effect. The present invention does not change the original engine valve 1, but only adds a step bush 4 between the spring and the valve 1, and the step bush 4 and the valve spring are in clearance fit, which can effectively eliminate noise.

[0013] In this embodiment, the valve spring is an i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a noise-eliminating device for a valve spring in a valve actuating mechanism of an engine, comprising an air valve and a spring, wherein a step bushing is arranged between the air valve and the spring; the step bushing and the spring are of clearance fit. The noise-eliminating device can eliminate shock noises or prevent frictions between the inner and outer springs during compression on condition that the existing valve actuating mechanism of the engine is not changed by arranging the step bushing between the air valve and the spring so as to effectively eliminate bad noises produced during the work process of the valve spring. The noise-eliminating device can be widely used for valve spring systems of different engines including automobile engines, motorcycle engines and so on. The noise-eliminating device has advantages of simple structure, convenience in processing, low production cost, convenience in installation and so on.

Description

technical field [0001] The invention relates to a device in an engine gas distribution mechanism, in particular to a valve spring noise elimination device in an engine gas distribution mechanism. Background technique [0002] The traditional engine gas distribution mechanism is a rocker arm that presses and releases the valve spring to drive the valve to open and close to complete the work. When the spring is compressed and released, the spring itself vibrates and generates noise. When the engine is running at high speed, the sound produced by the spring due to chattering is extremely harsh, and it is easy to cover the sound of other working parts of the engine, which creates obstacles and creates difficulties when repairing the engine to determine the fault. Contents of the invention [0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a valve spring noise elimination device in the engine valve train th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F01L3/10
Inventor 康宁
Owner NANJING JINCHENG MACHINERY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com